Area of Study: Dolphins

The conservation of the Guiana dolphin (Sotalia guianensis) in Todos os Santos Bay, Brazil, is a unique and ambitious project. Stefan Antunes, from Cape Verde, meets Professor Marcos Rossi, who seeks to build a detailed database of the local dolphin population using photo-identification and acoustic analysis. This groundbreaking research marks Stefan’s first international field study and is a steep learning curve as he explores the world of marine biology. In the first phase, the team focuses on recognizing individual dolphins through the distinctive markings on their dorsal fins. This method allows them to create a catalog, helping to estimate population size and monitor changes over time. Alongside photo identification, acoustic recordings are used to study the dolphins’ behavior, including foraging, traveling, and social interactions. By analyzing these sounds, researchers gain deeper insights into how the dolphins communicate and navigate their environment. The study also aims to explore the impacts of anthropogenic threats like boat traffic, fishing nets, and pollution, which pose serious risks to the dolphins’ survival. The findings will not only contribute to the conservation of this near-threatened species but also help update their status, guiding future efforts to protect them. This project serves as an adventure for Stefan, who brings his passion for conservation to the field. It also strengthens ties between the local community and the scientific community, emphasizing the importance of preserving both the dolphins and their habitat in Todos os Santos Bay. Through this research, Stefan and Professor Rossi hope to address gaps in knowledge and provide critical data for the long-term survival of Guiana dolphins in this region.